Started implementing the low level PDI protocol in the AVRISP project, for XMEGA device programming.

5 files changed, 236 insertions, 31 deletions

diff --git a/Projects/AVRISP/Lib/ISPProtocol.c b/Projects/AVRISP/Lib/ISPProtocol.c
index 8bfa4d4d7..c023234c3 100644
--- a/Projects/AVRISP/Lib/ISPProtocol.c
+++ b/Projects/AVRISP/Lib/ISPProtocol.c
@@ -61,7 +61,7 @@ void ISPProtocol_EnterISPMode(void)
 	

 	CurrentAddress = 0;

 

-	V2Protocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS);	  

+	V2Protocol_DelayMS(Enter_ISP_Params.ExecutionDelayMS); 

 	SPI_Init(ISPTarget_GetSPIPrescalerMask() | SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING | SPI_MODE_MASTER);

 		

 	while (Enter_ISP_Params.SynchLoops-- && (ResponseStatus == STATUS_CMD_FAILED))

diff --git a/Projects/AVRISP/Lib/PDIProtocol.c b/Projects/AVRISP/Lib/PDIProtocol.c
index b095a49c5..c91956143 100644
--- a/Projects/AVRISP/Lib/PDIProtocol.c
+++ b/Projects/AVRISP/Lib/PDIProtocol.c
@@ -35,7 +35,7 @@
  *  PDI Protocol handler, to process V2 Protocol wrapped PDI commands used in Atmel programmer devices.

  */

 

-#define  INCLUDE_FROM_XPROG_C

+#define  INCLUDE_FROM_PDIPROTOCOL_C

 #include "PDIProtocol.h"

 

 uint32_t XPROG_Param_NVMBase;

@@ -91,6 +91,59 @@ void PDIProtocol_XPROG_Command(void)
 	}

 }

 

+static void PDIProtocol_EnterXPROGMode(void)

+{

+	uint8_t ReturnStatus = XPRG_ERR_OK;

+

+	Endpoint_ClearOUT();

+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);

+	

+	PDIDATA_LINE_DDR  |= PDIDATA_LINE_MASK;

+	PDICLOCK_LINE_DDR |= PDICLOCK_LINE_MASK;

+	

+	PDIDATA_LINE_PORT |= PDIDATA_LINE_MASK;

+

+	_delay_us(1);

+	

+	for (uint8_t i = 0; i < 16; i++)

+	{

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	}

+		

+	static const uint8_t NVMKey[8] = {0x12, 0x89, 0xAB, 0x45, 0xCD, 0xD8, 0x88, 0xFF};

+	

+	PDITarget_SendByte(PDI_CMD_KEY);	

+	for (uint8_t i = 0; i < 8; i++)

+	  PDITarget_SendByte(NVMKey[i]);

+

+	PDITarget_SendByte(PDI_CMD_LDCS | PD_STATUS_REG);	

+	if (!(PDITarget_ReceiveByte() & PDI_STATUS_NVM))

+	  ReturnStatus = XPRG_ERR_FAILED;

+	

+	Endpoint_Write_Byte(CMD_XPROG);

+	Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);

+	Endpoint_Write_Byte(ReturnStatus);

+	Endpoint_ClearIN();

+}

+

+static void PDIProtocol_LeaveXPROGMode(void)

+{

+	Endpoint_ClearOUT();

+	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);

+	

+	PDIDATA_LINE_DDR   &= ~PDIDATA_LINE_MASK;

+	PDICLOCK_LINE_DDR  &= ~PDICLOCK_LINE_MASK;

+

+	PDIDATA_LINE_PORT  &= ~PDIDATA_LINE_MASK;

+	PDICLOCK_LINE_PORT &= ~PDICLOCK_LINE_MASK;

+	

+	Endpoint_Write_Byte(CMD_XPROG);

+	Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);

+	Endpoint_Write_Byte(XPRG_ERR_OK);

+	Endpoint_ClearIN();

+}

+

 static void PDIProtocol_EraseChip(void)

 {

 	uint8_t ReturnStatus = XPRG_ERR_OK;

@@ -209,34 +262,6 @@ static void PDIProtocol_ReadCRC(void)
 	Endpoint_ClearIN();	

 }

 

-static void PDIProtocol_EnterXPROGMode(void)

-{

-	uint8_t ReturnStatus = XPRG_ERR_OK;

-

-	Endpoint_ClearOUT();

-	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);

-	

-	// TODO: Enter device programming mode here via PDI protocol

-	

-	Endpoint_Write_Byte(CMD_XPROG);

-	Endpoint_Write_Byte(XPRG_CMD_ENTER_PROGMODE);

-	Endpoint_Write_Byte(ReturnStatus);

-	Endpoint_ClearIN();

-}

-

-static void PDIProtocol_LeaveXPROGMode(void)

-{

-	Endpoint_ClearOUT();

-	Endpoint_SetEndpointDirection(ENDPOINT_DIR_IN);

-	

-	// TODO: Exit device programming mode here via PDI protocol

-

-	Endpoint_Write_Byte(CMD_XPROG);

-	Endpoint_Write_Byte(XPRG_CMD_LEAVE_PROGMODE);

-	Endpoint_Write_Byte(XPRG_ERR_OK);

-	Endpoint_ClearIN();

-}

-

 static void PDIProtocol_SetParam(void)

 {

 	uint8_t ReturnStatus = XPRG_ERR_OK;

diff --git a/Projects/AVRISP/Lib/PDIProtocol.h b/Projects/AVRISP/Lib/PDIProtocol.h
index 2710b2ff5..53388d060 100644
--- a/Projects/AVRISP/Lib/PDIProtocol.h
+++ b/Projects/AVRISP/Lib/PDIProtocol.h
@@ -41,6 +41,7 @@
 		#include <stdio.h>

 	

 		#include "V2Protocol.h"

+		#include "PDITarget.h"

 

 	/* Macros: */

 		#define XPRG_CMD_ENTER_PROGMODE             0x01

@@ -87,7 +88,7 @@
 		void PDIProtocol_XPROG_SetMode(void);

 		void PDIProtocol_XPROG_Command(void);

 		

-		#if defined(INCLUDE_FROM_XPROG_C)

+		#if defined(INCLUDE_FROM_PDIPROTOCOL_C)

 			static void PDIProtocol_EnterXPROGMode(void);

 			static void PDIProtocol_LeaveXPROGMode(void);

 			static void PDIProtocol_SetParam(void);

diff --git a/Projects/AVRISP/Lib/PDITarget.c b/Projects/AVRISP/Lib/PDITarget.c
new file mode 100644
index 000000000..57a1a29ee
--- /dev/null
+++ b/Projects/AVRISP/Lib/PDITarget.c
@@ -0,0 +1,105 @@
+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2009.

+              

+  dean [at] fourwalledcubicle [dot] com

+      www.fourwalledcubicle.com

+*/

+

+/*

+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, and distribute this software

+  and its documentation for any purpose and without fee is hereby

+  granted, provided that the above copyright notice appear in all

+  copies and that both that the copyright notice and this

+  permission notice and warranty disclaimer appear in supporting

+  documentation, and that the name of the author not be used in

+  advertising or publicity pertaining to distribution of the

+  software without specific, written prior permission.

+

+  The author disclaim all warranties with regard to this

+  software, including all implied warranties of merchantability

+  and fitness.  In no event shall the author be liable for any

+  special, indirect or consequential damages or any damages

+  whatsoever resulting from loss of use, data or profits, whether

+  in an action of contract, negligence or other tortious action,

+  arising out of or in connection with the use or performance of

+  this software.

+*/

+

+#if defined(ENABLE_XPROG_PROTOCOL)

+

+/** \file

+ *

+ *  Target-related functions for the PDI Protocol decoder.

+ */

+

+#define  INCLUDE_FROM_PDITARGET_C

+#include "PDITarget.h"

+

+void PDITarget_SendByte(uint8_t Byte)

+{

+	PDIDATA_LINE_PORT  &= ~PDIDATA_LINE_MASK;

+

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;	

+

+	for (uint8_t i = 0; i < 8; i++)

+	{

+		if (Byte & 0x01)

+		  PDIDATA_LINE_PORT |= PDIDATA_LINE_MASK;

+		else

+		  PDIDATA_LINE_PORT &= ~PDIDATA_LINE_MASK;

+		  

+		Byte >>= 1;

+

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;	

+	}

+

+	PDIDATA_LINE_PORT  |= PDIDATA_LINE_MASK;

+

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+}

+

+uint8_t PDITarget_ReceiveByte(void)

+{

+	uint8_t ReceivedByte = 0;

+

+	PDIDATA_LINE_DDR   &= ~PDIDATA_LINE_MASK;

+

+	bool FoundStartBit;

+

+	do

+	{

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+		FoundStartBit = !(PDIDATA_LINE_PIN & PDIDATA_LINE_MASK);

+	} while (!FoundStartBit);

+	

+	for (uint8_t i = 0; i < 8; i++)

+	{

+		if (PDIDATA_LINE_PIN & PDIDATA_LINE_MASK)

+			ReceivedByte |= 0x01;

+

+		ReceivedByte <<= 1;

+

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+		PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;	

+	}

+

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	PDICLOCK_LINE_PORT ^= PDICLOCK_LINE_MASK;

+	

+	PDIDATA_LINE_DDR   |= PDIDATA_LINE_MASK;

+	

+	return ReceivedByte;

+}

+

+#endif

diff --git a/Projects/AVRISP/Lib/PDITarget.h b/Projects/AVRISP/Lib/PDITarget.h
new file mode 100644
index 000000000..cc8c7dbc5
--- /dev/null
+++ b/Projects/AVRISP/Lib/PDITarget.h
@@ -0,0 +1,74 @@
+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2009.

+              

+  dean [at] fourwalledcubicle [dot] com

+      www.fourwalledcubicle.com

+*/

+

+/*

+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, and distribute this software

+  and its documentation for any purpose and without fee is hereby

+  granted, provided that the above copyright notice appear in all

+  copies and that both that the copyright notice and this

+  permission notice and warranty disclaimer appear in supporting

+  documentation, and that the name of the author not be used in

+  advertising or publicity pertaining to distribution of the

+  software without specific, written prior permission.

+

+  The author disclaim all warranties with regard to this

+  software, including all implied warranties of merchantability

+  and fitness.  In no event shall the author be liable for any

+  special, indirect or consequential damages or any damages

+  whatsoever resulting from loss of use, data or profits, whether

+  in an action of contract, negligence or other tortious action,

+  arising out of or in connection with the use or performance of

+  this software.

+*/

+

+/** \file

+ *

+ *  Header file for PDITarget.c.

+ */

+

+#ifndef _PDI_TARGET_

+#define _PDI_TARGET_

+

+	/* Includes: */

+		#include <avr/io.h>

+		#include <stdbool.h>

+	

+	/* Defines: */

+		#define PDIDATA_LINE_PORT     PORTB

+		#define PDIDATA_LINE_DDR      DDRB

+		#define PDIDATA_LINE_PIN      PINB

+		#define PDIDATA_LINE_MASK     (1 << 2)

+		

+		#define PDICLOCK_LINE_PORT    RESET_LINE_PORT

+		#define PDICLOCK_LINE_DDR     RESET_LINE_DDR

+		#define PDICLOCK_LINE_MASK    RESET_LINE_MASK

+

+		#define PDI_CMD_LDS           0x00

+		#define PDI_CMD_LD            0x20

+		#define PDI_CMD_STS           0x40

+		#define PDI_CMD_ST            0x60

+		#define PDI_CMD_LDCS          0x80

+		#define PDI_CMD_REPEAT        0xA0

+		#define PDI_CMD_STCS          0xC0

+		#define PDI_CMD_KEY           0xE0

+		

+		#define PD_STATUS_REG         0

+		#define PD_RESET_REG          1

+		#define PD_CTRL_REG           2

+

+		#define PDI_STATUS_NVM        (1 << 1)

+		#define PDI_RESET_KEY         0x59

+

+		

+	/* Function Prototypes: */

+		void    PDITarget_SendByte(uint8_t Byte);

+		uint8_t PDITarget_ReceiveByte(void);

+

+#endif